What it is
Lauryl PEG-8 dimethicone is a modified silicone that combines a silicone backbone with lauryl and polyethylene glycol groups, giving it surface-active properties. In sunscreens it is commonly used to stabilize water-in-silicone or water-in-oil emulsions, helping disperse mineral or oily UV filters into a smooth, even base. It contributes to a light, silky application feel.
Safety & warnings
Lauryl PEG-8 dimethicone is generally well tolerated and is widely used as an emulsifier in leave-on products, including mineral sunscreens marketed for sensitive skin. It is not a common sensitizer at typical use levels.
Origin & sourcing
Synthetic; a silicone polymer chemically modified with lauryl and PEG side chains.
Questions everyone asks
What does lauryl PEG-8 dimethicone do?
It is a silicone-based emulsifier that stabilizes water-in-silicone or water-in-oil formulas and helps disperse UV filters.
Why is it common in mineral sunscreens?
It helps evenly disperse mineral filters into a smooth base and gives a light, silky feel.